Real World Examples of Osmosis - PowerPoint PPT Presentation

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Real World Examples of Osmosis

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  1. Real World Examples of Osmosis

  2. Example 1 Sore throat? Gargle salt water. Why? • swelling throat tissues, contain H2O • salt water has lower concentration than throat tissue so by osmosis, water moves from throat tissues out to the salt water • loss of H2O decreases the swelling and relieves some pain

  3. Example 2 Sticky wooden door? Sticky dresser drawer? • when it rains: wood absorbs H2O from air due to osmosis (hypotonic) • when it is dry: H2O is lost from wood, returns to normal condition (hypertonic)

  4. Example 3 Why does salt kill slugs? • liquids inside slug sent to dilute the salt and maintain mucus layer • salt will dehydrate slug’s body cause the slug to die because all the liquids would leave its body (hypertonic)